Design and synthesis of novel benzenesulfonamide containing 1,2,3-triazoles as potent human carbonic anhydrase isoforms I, II, IV and IX inhibitors
作者:Rajiv Kumar、Lalit Vats、Silvia Bua、Claudiu T. Supuran、Pawan K. Sharma
DOI:10.1016/j.ejmech.2018.06.021
日期:2018.7
1 to 86.8 nM as compared to standard drug acetazolamide (AAZ) with Ki = 250 nM. Further it was found that most of tested compounds were weaker inhibitors of isoform, hCA II although compounds 7b, 7d-7e, 8a, 8d-8f, 8i (mostly with electron withdrawing substituents) have shown better inhibition potential (Ki < 50 nM). Against glaucoma associated hCA IV, compound 7d was found to be better inhibitor (Ki = 52
为了发现新的生物活性化合物,一系列二十个新颖的杂环衍生物在5位被-H(7a-7j)或-CF 3(8a-8j)取代,在N-1位带有苯磺酰胺和各种芳酰基合成1,2,3-三唑环的4位上的化合物,并筛选其对四种人(h)同工型hCA I,II,IV和IX的碳酸酐酶(CA,EC 4.2.1.1)抑制潜能。通过[3 + 2]环加成反应由4-叠氮基苯磺酰胺合成所有化合物(7a-7j和8a-8j)。有趣的是,化合物7a-7j使用新颖的方法,通过烯胺酮中间体以一锅方式制备。与标准药物乙酰唑胺(AAZ)相比,所有新合成的化合物(7a-7j和8a-8j)都是与水肿相关的亚型hCA I的优异抑制剂,其抑制常数(K i)为30.1至86.8 nM。 K i = 250 nM。进一步发现,尽管化合物7b,7d - 7e,8a,8d - 8f,8i是大多数受试化合物,但它们是同工型hCA II的较弱抑制剂。(大多数带有吸电子取代基)显示出更好的抑制潜能(K